Narcomoeba

• WWizards of the Coast2024-01-12
  Official Ruling
  If Narcomoeba is revealed or looked at while moving from your library to your graveyard (such as with Mind Funeral), its ability will trigger when it's put into your graveyard. It was still in your library while it was revealed or being looked at.
• WWizards of the Coast2024-01-12
  Official Ruling
  If Narcomoeba is removed from your graveyard before its ability resolves, you can't put it onto the battlefield.

Rulings via Scryfall